ATE393343T1 - PRESSURE FEED VALVE - Google Patents

PRESSURE FEED VALVE

Info

Publication number
ATE393343T1
ATE393343T1 AT04786815T AT04786815T ATE393343T1 AT E393343 T1 ATE393343 T1 AT E393343T1 AT 04786815 T AT04786815 T AT 04786815T AT 04786815 T AT04786815 T AT 04786815T AT E393343 T1 ATE393343 T1 AT E393343T1
Authority
AT
Austria
Prior art keywords
pressure feed
feed valve
piston
flow
section
Prior art date
Application number
AT04786815T
Other languages
German (de)
Inventor
Karl Krug-Kussius
Original Assignee
Bosch Rexroth Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bosch Rexroth Ag filed Critical Bosch Rexroth Ag
Application granted granted Critical
Publication of ATE393343T1 publication Critical patent/ATE393343T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve
    • F16K17/105—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve using choking or throttling means to control the fluid operation of the main valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4043—Control of a bypass valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4078—Fluid exchange between hydrostatic circuits and external sources or consumers
    • F16H61/4139—Replenishing or scavenging pumps, e.g. auxiliary charge pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y10T137/7764—Choked or throttled pressure type
    • Y10T137/7766—Choked passage through main valve head
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y10T137/7769—Single acting fluid servo
    • Y10T137/777—Spring biased

Abstract

What is disclosed is a pilot-controlled pressure feed valve comprising a main stage and a pilot control stage, wherein the main stage comprises a piston that is biased into a closed position. The piston is provided with a piston bore through which an input port may be connected with a rear-side spring chamber. To this piston bore a throttle valve means is associated which provides a comparatively small cross-section of flow for the control oil in the pressure limiting function of the pressure feed valve, and a comparatively large cross-section of flow in the anti-cavitation function.
AT04786815T 2003-10-01 2004-09-20 PRESSURE FEED VALVE ATE393343T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003145712 DE10345712A1 (en) 2003-10-01 2003-10-01 Pressure feed

Publications (1)

Publication Number Publication Date
ATE393343T1 true ATE393343T1 (en) 2008-05-15

Family

ID=34353245

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04786815T ATE393343T1 (en) 2003-10-01 2004-09-20 PRESSURE FEED VALVE

Country Status (8)

Country Link
US (1) US7565915B2 (en)
EP (1) EP1668282B1 (en)
JP (1) JP4602335B2 (en)
KR (1) KR101118073B1 (en)
CN (1) CN100447466C (en)
AT (1) ATE393343T1 (en)
DE (2) DE10345712A1 (en)
WO (1) WO2005033566A1 (en)

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Publication number Priority date Publication date Assignee Title
KR100800081B1 (en) * 2006-08-29 2008-02-01 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Hydraulic circuit of option device of excavator
CN101000113B (en) * 2006-12-01 2010-11-03 华中科技大学 Middle and high pressure guiding type water pressure reducing valve
KR100826627B1 (en) * 2007-03-27 2008-05-02 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Relief valve of heavy equipment
US8360096B2 (en) * 2007-08-15 2013-01-29 Sauer-Danfoss Inc. Low pressure rise rate pilot operated poppet relief valve
JP5320120B2 (en) * 2009-03-26 2013-10-23 ナブテスコ株式会社 Multifunctional relief valve and emergency hydraulic power unit for aircraft equipped with the same
DE102009053389A1 (en) 2009-11-14 2011-05-19 Robert Bosch Gmbh Pressure valve e.g. pressure limiting valve, for e.g. use as drive valve in hydrostatic drive, has piston casing moving piston in direction away from valve seat during displacement of casing, where casing exhibits form coding
DE102009053612A1 (en) 2009-11-17 2011-05-19 Robert Bosch Gmbh Pilot operated pressure control valve i.e. pressure-feeding valve, for use as working valve in e.g. traction drive, has valve device including throttle element, where element and/or bushing is formed with respect to cross sectional plane
WO2013059777A1 (en) * 2011-10-21 2013-04-25 Sun Hydraulics Corporation Dynamically adjusting counterbalance valve
US8662277B2 (en) 2011-12-22 2014-03-04 Fairfield Manufacturing Company, Inc. Planetary gearbox with integral service brake
US9429227B2 (en) 2014-02-19 2016-08-30 Fairfield Manufacturing Company, Inc. Planetary gearbox with integral service brake
US9708808B2 (en) * 2015-05-21 2017-07-18 Jay R. Smith Manufacturing Company Trap primer
US10437269B1 (en) * 2017-10-06 2019-10-08 Sun Hydraulics, Llc Electrohydraulic counterbalance and pressure relief valve
US10794510B1 (en) 2017-12-20 2020-10-06 Sun Hydraulics, Llc Electrohydraulic counterbalance and pressure relief valve
CN108105436A (en) * 2017-12-21 2018-06-01 宁波文泽机电技术开发有限公司 A kind of one-way speed-regulating valve
CN108317031B (en) * 2018-02-09 2020-07-17 中国第一汽车股份有限公司 Fuel supply holding valve
US10495117B1 (en) 2018-04-17 2019-12-03 Sun Hydraulics, Llc Electrohydraulic counterbalance and pressure relief valve
US10774883B2 (en) * 2018-06-06 2020-09-15 Borgwarner Inc. Passive wet clutch lube valve with a bailing system and transmission including the same
US10557483B1 (en) 2018-09-18 2020-02-11 Sun Hydraulics, Llc Electrohydraulic valve normally operating in pressure relief mode and configured to operate in ventable mode when actuated
US10774853B2 (en) 2018-09-18 2020-09-15 Sun Hydraulics, Llc Electrohydraulic valve normally operating in fluid flow-blocking mode and configured to operate in pressure relief mode when actuated
US10533584B1 (en) 2018-09-18 2020-01-14 Sun Hydraulics, Llc Electrohydraulic normally-open ventable valve configured to operate in pressure relief mode when actuated
US10570932B1 (en) 2018-09-18 2020-02-25 Sun Hydraulics, Llc Electrohydraulic valve normally operating in pressure relief mode and configured to block fluid flow when actuated
US10662979B1 (en) * 2018-12-10 2020-05-26 Sun Hydraulics, Llc Proportional valve for fluid flow control and generation of load-sense signal
US10626892B1 (en) * 2018-12-10 2020-04-21 Sun Hydraulics, Llc Proportional valve for fluid flow control
US10775812B1 (en) * 2019-01-22 2020-09-15 Sun Hydraulics, Llc Inverse proportional pressure relief valve
US10683879B1 (en) 2019-01-22 2020-06-16 Sun Hydraulics, Llc Two-port electrohydraulic counterbalance valve
US11149723B2 (en) * 2019-12-31 2021-10-19 Psg California Llc Diaphragm pump leak detection

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
US3090398A (en) * 1962-02-05 1963-05-21 American Brake Shoe Co Dual direction relief or sequence type valve
US3952771A (en) * 1975-01-08 1976-04-27 Zahnradfabrik Friedrichshafen Ag Relief valves with pilot valves
JPS55112463A (en) * 1979-02-20 1980-08-30 Kayaba Ind Co Ltd Pressure control valve
JPS5620877A (en) * 1979-07-25 1981-02-26 Kayaba Ind Co Ltd Pressure control valve
JPS56156570A (en) * 1980-05-06 1981-12-03 Aisin Seiki Co Ltd Check valve combined with balance piston type relief valve
US4531543A (en) * 1983-06-20 1985-07-30 Ingersoll-Rand Company Uni-directional flow, fluid valve
DE3921292A1 (en) * 1989-06-29 1991-01-10 Rexroth Mannesmann Gmbh PRE-CONTROLLED PRESSURE LIMIT VALVE
DE4304796A1 (en) * 1993-02-17 1994-08-18 Rexroth Mannesmann Gmbh Pilot-controlled pressure-relief valve
US5655567A (en) * 1995-06-07 1997-08-12 Chrysler Corporation Valve assembly for transmission
DE19524900C2 (en) * 1995-07-08 2000-12-28 Mannesmann Rexroth Ag Pilot operated pressure relief valve
DE19744337A1 (en) * 1997-10-07 1999-04-08 Mannesmann Rexroth Ag Pilot operated pressure relief valve
DE10120643B4 (en) 2000-11-10 2012-05-24 Bosch Rexroth Aktiengesellschaft Pilot operated pressure valve
EP1332305A2 (en) * 2000-11-10 2003-08-06 Bosch Rexroth AG Pilot-operated pressure supply valve
DE10145975A1 (en) 2000-11-10 2002-08-29 Mannesmann Rexroth Ag Pilot operated pressure feed valve
US6805155B2 (en) 2001-11-16 2004-10-19 Hydraforce, Inc. Cartridge relief valve with improved stability

Also Published As

Publication number Publication date
KR101118073B1 (en) 2012-02-27
CN1864023A (en) 2006-11-15
JP2007507671A (en) 2007-03-29
WO2005033566A1 (en) 2005-04-14
JP4602335B2 (en) 2010-12-22
EP1668282A1 (en) 2006-06-14
US7565915B2 (en) 2009-07-28
DE502004006946D1 (en) 2008-06-05
KR20060090697A (en) 2006-08-14
US20060266419A1 (en) 2006-11-30
DE10345712A1 (en) 2005-04-21
EP1668282B1 (en) 2008-04-23
CN100447466C (en) 2008-12-31

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Legal Events

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